Filetype
A simulation scheme based on nonequilibrium Green's functions for biased periodic semiconductor heterostructure devices is presented in detail. The implementation can determine current and optical gain both for small and large optical fields. Specific results for superlattices, quantum cascade lasers, and quantum cascade detectors are shown which demonstrate the capabilities of the approach.
PhD in Public Health since 2022, MD, Scientific Manager in Medical Science at the Novo Nordisk Foundation My name is Esther González-Padilla. I moved to Sweden after finishing my medical degree from the Canary Islands (Spain). The Öresund Region was particularly attractive to me as it is known to be a strong Life Sciences Hub. The possibility to access digitalised medical records and to learn in E
https://www.medicine.lu.se/research/postgraduate-research-studies/meet-our-doctoral-students/esther-gonzalez-padilla - 2026-10-07
A multi-scale hydroclimatic study of runoff generation in the Athabasca River watershed located in western Canada is presented. Mann-Kendall trend detection tests performed on hydrometric data for the lower Athabasca River (LAR) revealed predominantly significant (p<0.05) declines in annual and open-water season median/mean runoff indices over 1958-2009, with the ice-influenced season experiencing
In this work, we numerically study a self-guiding process in which ionization plays a dominant role and analyze its effect on high-order harmonic generation (HHG) in gases. Although this type of self-guiding-termed "plasmacore- induced self-guiding" in previous works-limits the achievable cutoff by regulating the intensity of the laser beam, it provides favorable conditions for phase matching, whi
Nonlinear harmonic generation can be a very useful and important phenomenon for single-pass free-electron lasers (FELs) operating in the high-gain regime. Strong bunching at the fundamental wavelength and its associated higher harmonic content allow significant radiation at shorter wavelengths to be emitted without serious effects upon the output power at the fundamental. Here, we analyze the rela
Generation of charge pairs in a ladder-type poly(para-phenylene) was investigated by means of electric field modulated femtosecond pump-probe absorption spectroscopy upon excitation at 3.1 and 4.66 eV. Exciting at 3.1 eV in the optical S-0-->S-1 transition, the number of geminately bound electron-hole pairs rises smoothly within the entire exciton life time. Upon excitation at 4.66 eV an instantan
Complex product form generation methods have rarely been used within the field of industrial design. The difficulty in their use is mainly linked to constraints – such as functionality, production and cost – that apply to most products. By cou-pling a mathematically described morphology to an optimisation system, it may be possible to generate a complex product form, compliant with engineering and
Mapping free-energy landscapes has proved to be a powerful tool for studying reaction mechanisms. Many complex biomolecular assembly processes, however, have remained challenging to access using this approach, including the aggregation of peptides and proteins into amyloid fibrils implicated in a range of disorders. Here, we generalize the strategy used to probe free-energy landscapes in protein f
Micro-droplets with excellent physical properties and size effects are widely used in different fields. Peristaltic pumps are often used for droplet generation. The thrust force of pumps is periodic as a periodic disturbance when the time scale is short enough. Numerical simulation based on a validated model was applied to study the periodic disturbance effects on droplet generation in a cross-jun
A commemorative issue of Lund Journal of English Studies A commemorative issue of Lund Journal of English Studies Published 8 June 2022 [Translate to English:] In memory of Mats Johansson. A commemorative issue of Lund Journal of English Studies for Mats Johansson has been published and is available at https://journals.lub.lu.se/ljes/issue/view/3277 Share http://www.sol.lu.se?id=62875&tx_news_
https://www.sol.lu.se/en/article/a-commemorative-issue-of-lund-journal-of-english-studies/ - 2026-10-05
SOL-researcher selected as a member of AcademiaNet SOL-researcher selected as a member of AcademiaNet Published 25 May 2022 Eva Klingvall has been selected as a member AcademiaNet: Profiles of Leading Women scientists. More information about Eva Klingvalls reseach: https://www.sol.lu.se/person/EvaKlingvall/ AcademiaNet is a database of profiles of excellent female researchers from all disciplin
https://www.sol.lu.se/en/article/sol-forskare-invald-i-academianet/ - 2026-10-05
We devise an autonomous quantum thermal machine consisting of three pairwise-interacting qubits, two of which are locally coupled to thermal reservoirs. The machine operates autonomously, as it requires no time-coherent control, external driving or quantum bath engineering, and is instead propelled by a chemical potential bias. Under ideal conditions, we show that this out-of-equilibrium system ca
We report on an extremely narrow linewidth of a two-dimensional electron-gas photoluminescence in GaAs/AlGaAs quantum wells pumped by ultrasonic vibrations. Below the threshold pumping amplitude, the observed emission line is weak, broad, and undergoes a redshift consistent with the evolution of an electron-hole plasma recombination in the oscillating piezoelectric fields accompanying the sample v
